Home / 10,118.97-13,981.32-7,280.73

Finding the Fourth Proportional to 10,118.97, 13,981.32 and 7,280.73

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Solution

The fourth proportional to 10,118.97, 13,981.32 and 7,280.73 is: 10,059.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,118.97 : 13,981.32 = 7,280.73 : x
  2. Step 2: Convert to fraction form
    10,118.97/13,981.32 = 7,280.73/x
  3. Step 3: Cross multiply
    10,118.97x = 13,981.32 × 7,280.73
  4. Step 4: Simplify right side
    10,118.97x = 101,794,195.49
  5. Step 5: Solve for x
    x = 101,794,195.49/10,118.97
  6. Step 6: Final answer
    x = 10,059.74

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Half scale
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Double scale
Find fourth proportional to 10,119.97, 13,982.70 and 7,281.73
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.